Greater Goods- 10% off all insulation items, including weatherstripping, air-conditioner covers, Gila window film, and hot water heater blankets - mention "Warm-Up" at the register- through October 31st

The Washington Design Center- Public access to showrooms usually only open designers and architects; furniture, lighting, and home accessories up to 75% off; October 10th and 11th from 10 am to 3 pm- Design House open September 26th to December 13th- 300 D St SW, Washington, DC 20024, 202.554.5053

National Building Museum's Festival of the Building Arts- Building and arts professionals lead activities including finishing drywall and working with stone carvers, woodworkers, blacksmiths, and glass designers- October 11th, 10 am - 4:30 pm - 401 F Street NW Washington, DC 20001, 202.272.2448